ph5_validate: fix incorrect errors/warnings for eventId, stationId and location/Z/value_d

[damhuonglan]

What does this PR do?

modify checking limit for station id to [0, 32767], event id to [0, 2147483647]; remove error 'No Event location/Z/value_d value found.' when value_d=0

Relevant Issues?

490

Checklist

• [ ] This PR is not directly related to an existing issue (which has no PR yet).
• [x] All tests pass.
• [ ] Any new or changed features have are documented.
• [x] Changes have been added to CHANGELOG.txt .
• [ ] First time contributors have added your name to CONTRIBUTORS.txt .